Mendel’s Work
Read pages 76-81 of your science book then answer the following questions.
1.
Who is Gregor Mendel?
2.
What is heredity?
3.
What are traits?
4.
Are all of a plants’ traits similar to the traits of their parents? Explain how they are or are not…
5.
What is the scientific study of heredity?
6.
What is fertilization?
7.
How is cross-pollination different than self-pollination?
8.
What is a purebred organism?
9.
Describe what happened when Mendel crossed purebred tall pea plants with purebred short pea plants.
10.
How did Mendel’s experiments help to explain the inheritance of traits?
11.
What do today’s scientists call the factors that control a trait?
12.
What is an allele?
13.
How are an organism’s traits controlled?
14.
What is a dominant allele?
15.
What is a recessive allele?
16.
How can a recessive allele show up in an organism?
17.
What is a hybrid?
18.
Capital letter and lower case letters are used to represent alleles. What letter represents a dominant allele?
19.
What letter represents a recessive allele?
20.
Tall stems are dominant in pea plants. What are the alleles for a hybrid tall plant?
21.
Can a short pea plant ever be a hybrid for the trait of stem height? Be sure to explain why or why not.
As part of your explanation write the letters that represent the alleles for stem height of a short plant.
22.
How did Mendel’s work change scientists’ ideas about heredity?